Alabama Securities Commission chief Joe Borg said he will release the findings of an internal investigation into how someone in his office mistakenly gave a Birmingham trial lawyer a computer disk containing confidential information on 18,500 clients of Morgan Keegan & Co.

“We messed up. This is the first time something like this has happened during my 15 years here,” Borg said in an interview today.

Borg said Birmingham lawyer Andy Campbell, who received the disk, has signed an affidavit stating he didn’t review the client information. The incident happened after a paralegal from Campbell’s office requested Morgan Keegan exhibits that had been created as part of an Alabama Securities Commission probe into losses suffered by Morgan Keegan mutual fund investors.

Borg’s office mistakenly sent Campbell a disk that contained private client information instead of one that had redacted the personal information. Campbell returned the disk earlier this month after the commission was contacted about it by Morgan Keegan, Borg said.

Borg said new procedures are being put into place by the commission to prevent private information from accidentally being released again.

“What is getting lost in this debate is the fact that this is not your typical breach like has happened in the past where private information was stolen or made available on the web,” Borg said.